MATLAB normalize function shadowed by DSP toolbox normalize function

Hi,

When I am trying to use in MATLAB R2019a,

normalize(X,'range');

The following error occurs,

Error using sum

Invalid option. Option must be 'all', 'double', 'native', 'default', 'omitnan', or 'includenan'.

Error in normalize (line 10)

It seems the matlab is using the normalize function in DSP toolbox. How can I use the MATLAB default normalize function?.

Currently using : https://www.mathworks.com/help/dsp/ref/normalize.html

Want to use : https://www.mathworks.com/help/matlab/ref/double.normalize.html

Thanking in advance for your help

Answer 1

[Steven Lord]

Can you confirm that MATLAB is using the version from DSP System Toolbox and not the one from MATLAB or that you've created or downloaded? Run this command with the X on which you're trying to operate in the workspace:

which -all normalize(X, 'range')

I don't think the version of normalize in DSP System Toolbox even calls sum, and line 10 of the one included in MATLAB is a help text comment. I think you have a different normalize.m that's shadowing the one in MATLAB. Rename that normalize.m, remove it, or move it lower on the MATLAB path than the one in MATLAB.

[Kaveen Liyanage]

Hi, Thanks for the response,

Yes, following is the output.

C:\Users\******\******\PRML-PRMLT-v2.0.1-1-g314f475\PRML-PRMLT-314f475\common\normalize.m

C:\Program Files\MATLAB\R2019a\toolbox\matlab\datafun\normalize.m

I removed the first one from the path. Now works fine. Thanks